*{margin:0;padding:0;box-sizing:border-box}
:root{--pri:#4f46e5;--pri-dk:#3730a3;--dark:#0f172a;--slate:#334155;--muted:#64748b;--light:#f1f5f9;--bg:#f8fafc;--white:#fff;--cyan:#06b6d4;--radius:6px;--max:960px}
body{font-family:"Inter",system-ui,sans-serif;font-size:16px;line-height:1.7;color:var(--slate);background:var(--bg)}
a{color:var(--pri);text-decoration:none;transition:color .2s}
a:hover{color:var(--pri-dk)}
img{max-width:100%;height:auto;display:block}

.hd{background:var(--dark);padding:.8rem 0}
.hd-inner{max-width:var(--max);margin:0 auto;padding:0 1.5rem;display:flex;align-items:center;justify-content:space-between}
.hd-logo{color:var(--white);font-size:1.15rem;font-weight:700;letter-spacing:-.02em}
.hd-logo em{font-style:normal;color:var(--cyan)}
.hd-nav{display:flex;gap:1.8rem;list-style:none}
.hd-nav a{color:#cbd5e1;font-size:.88rem;font-weight:500;transition:color .2s}
.hd-nav a:hover{color:var(--white)}

.hero{background:linear-gradient(135deg,var(--dark) 0%,#1e1b4b 100%);padding:4rem 1.5rem;text-align:center;color:var(--white)}
.hero h1{font-size:2rem;font-weight:800;letter-spacing:-.03em;margin-bottom:.8rem}
.hero p{max-width:600px;margin:0 auto;font-size:1.05rem;color:#cbd5e1;line-height:1.6}

.wrap{max-width:var(--max);margin:0 auto;padding:2.5rem 1.5rem}

.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem;margin:2rem 0}
.card{background:var(--white);border:1px solid #e2e8f0;border-radius:var(--radius);padding:1.5rem;transition:box-shadow .2s}
.card:hover{box-shadow:0 4px 16px rgba(0,0,0,.06)}
.card h3{font-size:1.05rem;margin-bottom:.5rem;color:var(--dark)}
.card p{font-size:.9rem;color:var(--muted);line-height:1.6}
.card-tag{display:inline-block;font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--pri);background:#eef2ff;padding:.2rem .6rem;border-radius:3px;margin-bottom:.8rem}

article{max-width:720px;margin:0 auto}
article h1{font-size:1.8rem;font-weight:800;color:var(--dark);margin-bottom:.5rem;letter-spacing:-.02em}
article .meta{font-size:.82rem;color:var(--muted);margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid #e2e8f0}
article h2{font-size:1.3rem;font-weight:700;color:var(--dark);margin:2rem 0 .8rem}
article h3{font-size:1.1rem;font-weight:600;color:var(--dark);margin:1.5rem 0 .6rem}
article p{margin-bottom:1rem}
article ul,article ol{margin:0 0 1rem 1.5rem}
article li{margin-bottom:.4rem;font-size:.95rem}
article code{background:#eef2ff;padding:.15rem .4rem;border-radius:3px;font-size:.88rem;color:var(--pri-dk)}
article pre{background:var(--dark);color:#e2e8f0;padding:1.2rem;border-radius:var(--radius);overflow-x:auto;margin:1rem 0;font-size:.85rem;line-height:1.5}
article blockquote{border-left:3px solid var(--cyan);padding:.8rem 1.2rem;background:#f0fdfa;margin:1rem 0;font-size:.95rem;color:var(--slate)}

.ft{background:var(--dark);color:#94a3b8;padding:2.5rem 1.5rem;margin-top:3rem;font-size:.82rem}
.ft-inner{max-width:var(--max);margin:0 auto;display:flex;justify-content:space-between;flex-wrap:wrap;gap:2rem}
.ft-col h4{color:var(--white);font-size:.9rem;margin-bottom:.6rem}
.ft-col ul{list-style:none}
.ft-col li{margin-bottom:.3rem}
.ft-col a{color:#94a3b8;transition:color .2s}
.ft-col a:hover{color:var(--cyan)}
.ft-copy{max-width:var(--max);margin:1.5rem auto 0;padding-top:1rem;border-top:1px solid #1e293b;font-size:.78rem;color:#475569}

@media(max-width:640px){
 .hd-nav{gap:1rem}
 .hero h1{font-size:1.5rem}
 .card-grid{grid-template-columns:1fr}
 .ft-inner{flex-direction:column}
}